LFSTBEB7660 Freescale Semiconductor, LFSTBEB7660 Datasheet - Page 24

• Manufacturer Part Number: LFSTBEB7660
• Description: BOARD DEV ACCELEROMETR MMA7660
• Manufacturer: Freescale Semiconductor

Specifications of LFSTBEB7660

• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±1.5g
• Interface: USB
• Sensitivity: 21.33 count/g
• Voltage - Supply: 5V, USB
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MMA7660
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MMA7660FC internal registers because the register address generally auto-increments.
Message Format for Reading MMA7660FC
is used as address pointer for a write. The pointer generally auto-increments after each data byte is read using the same rules
as for a write. Thus, a read is initiated by first configuring the device’s register address by performing a write
by a repeated start. The Master Write address is 1001 1001 (0x99). The master can now read 'n' consecutive bytes from it, with
the first data byte being read from the register addressed by the initialized register address.
Sensors
Freescale Semiconductor
Master
Master
Slave
Master
Master
Slave
If multiple data bytes are transmitted before a STOP condition is detected, these bytes are generally stored in subsequent
MMA7660FC is read using it’s internally stored register address as address pointer, the same way the stored register address
Slave
Slave
Data [7:0]
ST
ST Device Address [6:0]
ST
Device Address [6:0]
Device Address [6:0]
AK
Data [7:0]
W
W
W
AK
AK
AK
AK
Data [7:0]
Register Address [6:0]
Figure 13. Multiple Bytes Write
Figure 15. Multiple Bytes Read
Figure 14. Single Byte Read
Register Address [6:0]
Register Address [6:0]
NAK SP
AK
AK
SR Device Address [6:0]
AK
SR Device Address [6:0]
Data [7:0]
AK
R
R
AK
AK
Data [7:0]
Data [7:0]
(Figure
Data [7:0]
MMA7660FC
12) followed
AK
NAK SP
SP
AK
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